The teacher version of the Child Symptom Inventory-4 (CSI-4T) investigated prevalence of DSM-IV symptoms in 852 boys (ages 6-12) with emotional/behavioral disorders refereed for psychiatric consultation, in special education, referred to an outpatient clinic, or in regular education. Symptoms of attention-deficit/hyperactivity disorder and oppositional defiant disorder occurred most across groups. (Contains references.) (Author/CR)